It is not my fault
The crack in the earth's crust where stress is suddenly released causing an earthquake.
fault
These seismic waves can travel through all of the earth's layers or any state of matter:
P-waves (Primary waves)
In which part of an earthquake is where the rocks first begin to move?
focus
This is the scale used to measure the actual amount of seismic activity or magnitude of an Earthquake.
Richter Scale
Earthquakes are caused when too much of this has built up in rocks and they can no longer handle it.
pressure/stress?
At this type of fault, tectonic plates scrape past each other at a transform boundary.
strike-slip fault
These seismic waves travel only through solids.
S-waves (Secondary waves)
The name of the location directly above the focus.
epicenter
This instrument measures and records earthquake waves.
seismograph
A wall of water created when an earthquake occurs in the ocean floor this is called
Tsunami
Earthquakes occur along a fault in this layer of the earth.
Lithosphere
These seismic waves travel only across the the Earth's surface and usually cause the most damage.
surface waves
Most earthquakes occur along these areas because their slow movement causes large amounts of stress to build up over time.
plate boundaries
The scale used to measure an earthquake's intensity based on eyewitness observations.Based on destructions.
Mercalli scale
Most injuries and deaths from an earthquake occur due to the collapsing of these structures.
buildings
This type of fault is found where rocks are pulling apart resulting in one block of rock sliding downward in relation to the other.
Normal Fault
Definition: A movement or trembling of the ground that is caused by a sudden release of energy along a fault move:
earthquakes
In which part of an earthquake, the most damage occurs here:
epicenter
How the earthquake is felt by people is known as?
intensity
When a rock return to its original shape after an elastic deformation is called
elastic rebound
At this type of fault, one block of rock slides upwards in relation to the other one as a result of them being pushed together.
Reverse Fault
Type of waves that travel across the surface like a snake (side to side).
S waves
The tremors that follow major earthquakes as the Earth readjusts.
aftershocks
If an earthquake records a magnitude of 9.5, is this measurement recorded in the Mercalli Scale or Moment Magnitude scale?
Moment Magnitude
The location of the most powerful recorded earthquake in North America occurred in this state.
Alaska
The type of boundary in which two tectonic plates are moving toward each other - often locations of subduction and mountain building
convergent boundary
Types of waves that move up and down and back and forth:
surface waves
Definition: Vibrations that causes different types of ground motion
seismic wave
Definition:a measure of the damage an earthquake causes using the Mercalli Scale is its:
intensity
This type of damage is common after earthquakes besides building destructions
fires, gas explosion
The type of boundary in which two tectonic plates are moving away from each other
divergent boundary
Part of an earthquake that receives the 1st wave
focus
Definition: A break in the Earth's Crust occurs at the
Fault line
Definition:A measure of the earthquake's energy
magnitude
Name the place where a Powerful earthquakes occurred in South America:
Chile
The most dangerous type of fault is the
strike slip fault
When 3 circles meet to give the epicenter is called
triangulation
The boundary that causes earthquakes when plates slide past each other horizontally; like the San Andreas Fault
transform boundary
What scale is been used Richter, Moment Magnitude or Mercalli? If a seismologist says that an earthquake has been felt by few people at rest; some suspended items may swing.
Mercalli scale
San Andrea's fault is the result of which boundary
Transform Boundary